除了振幅和波长，周期波有它自己的频率。
In addition to amplitude and wavelength, a periodic wave is characterized by its frequency.
研究了这些周期波之间的相互作用，发现其相互作用是非弹性的。
The interaction properties of periodic waves are found to be inelastic.
通过相图中的各种轨道，获得了孤立波，扭子波和周期波的精确解。
By the orbit in the phase portraits, different kinds of solitary wave, kink wave and periodic wave solutions are obtained.
与实测资料比较发现，两者变化趋势基本一致，在短周期波时吻合较好。
The theoretic model is consistent with the observations, especially for short period wave.
用微分方程分支理论和计算机数值模拟方法研究广义CH方程的周期波解。
The periodic wave solutions of the generalized CH equation are investigated by using bifurcation theory of differential equations and numerical simulations.
利用微分方程解的几何定性理论，直接得到该方程存在有限振幅的周期波与孤立波解的存在条件。
Conditions for the existence of solutions to periodic and isolated waves of limited amplitude are directly obtained based on qualitative geometric theory for ordinary differential equations.
对京14井水位观测资料进行分析后，获得了包括长周期波m_1在内的各类波的调和分析结果。
After analysing the data of well Jing 14, all kinds of the satisfied harmonic analytical results including the long period wave Mf are obtained.
在积分常数为零的条件下，证明了该方程存在光滑孤立波解、不可数无穷多光滑周期波解、扭结波和反扭结波解。
When the integral constant is zero, the existence of smooth solitary wave solutions, uncountably infinite, many smooth periodic wave solutions, and kink and anti-kink wave solutions are proved.
首先通过变换关系和求解简单的常微分方程，得到了(3 +1)维破裂孤子方程丰富的孤立波解和周期波解。
Many of the exact solutions of (3 + 1) dimensional breaking soliton equation are obtained by using a simple transformation relation and solving the ordinary differential equation.
周期均值叠加法将随时间变化的水文要素序列分离成若干个周期波，然后将周期波进行外延，再进行线性叠加，从而获得预报结果。
The periodic mean superposition method can predict the result through decomposing the hydrological time series into several periodic waves, extrapolating the periodic waves, and linear superposition.
从各种随机噪声的轧制力信号这一复杂高频干扰周期波中分离出偏心信号，控制轧机在压下系统实现对偏心的补偿，以提高热轧带钢的厚度精度。
The system of roll mill press down is controlled to compensate the thickness variation of the hot strip mill so as to improve the hot-rolled strip thickness accuracy.
在快速眼动睡眠周期之间，我们还有非快速眼动睡眠，包括深度睡眠和慢波期睡眠。
In between cycles of REM sleep, we have non-REM sleep, which includes deep or 'slow-wave' sleep.
人们希望温度的时间系列尽可能地长，以便能研究各种波的振荡周期。
The time series of temperature are expected to be the longest possible so as to examine various modes of oscillation periods.
Cheng的模型描述了在黑洞持续吞食恒星时，热等离子体反复而周期性的被注入银河晕这样的震荡波是如何形成的。
Cheng's model describes how, as the black hole continues to devour stars, shockwaves are created as hot plasma is repeatedly and periodically injected into the halo.
后来，安德里亚凡安绰波夫(Andreasvon Antropoff)在1924年，利诺斯·卡尔·鲍林(Linus C . Pauling)在1932年，都做出了类似预测。预测的依据是：周期表里的化学趋势。
Similar predictions were made later, by Andreas von Antropoff (1924) and by Linus C. Pauling (1932), based on chemical trends in the periodic table.
最近一个周期中，M82的重力增强了M81周围密度波的脉动，导致M81的旋臂更浓密。
Last go-round, M82's gravity likely raised density waves rippling around M81, resulting in the richness of M81's spiral arms.
这种测度方法将十年的收益平均，以消除经济周期的波谷和波底所带来的影响。
This measure averages earnings over ten years to smooth out the peaks and troughs of the economic cycle.
在常规横向剪切干涉仪的基础上，利用波前周期延拓的假设，基于小波变换的方法实现了波前重构。
On the assumption of wavefront prolongation, a new optical phase retrieval algorithm by conventional lateral shear interferometer with wavelet transform is introduced.
周期也将从波列的开头到尾部逐渐变短。
The periods will then decrease from the beginning of the train to the end.
本文就此进行了初步分析，认为强震前的预滑移可能产生这种长周期的形变波，它们对大震预报有一定意义。
In this paper we analyze these data and find that the deformation wave of long period comes from pre-movement before a strong earthquake.
在考虑海浪对建筑物作用时，人们往往强调波高而对周期重视不够。
Under consideration of wave action on the structures, wave height is often recognized as more important than wave period.
应用数值模拟方法对水下爆炸产生的诸如气泡脉动规律、脉动周期、水中冲击波压力的变化等特性进行了研究。
The characteristics of underwater explosions such as pulsation law and pulsation cycle of bubbles, and pressure time histories of shock waves in water were investigated numerically.
第二部分，本文分析了小波周期模型的分解尺度数和各种不同入库径流序列对模型预测精度的影响程度。
Part two: This paper analyzed the degree of predicting precision affected by decomposing scale coefficient of wavelet cycle model and various kinds of reservoir inflow runoff series.
实验处理的结果表明：该方法不仅对微屈多次波有效，而且对残余的长周期鸣震多次波也可达到令人满意的压制效果。
The experiment processing results demonstrate that the method can not only sufficiently attenuate the peg-leg multiples but also eliminate the long-period residual multiples to a satisfactory effect.
讨论了光栅周期、光栅深度、入射波入射角度等参数对光栅衍射特性的影响。
The effects of grating period, the grating depth , and incident angle on the grating diffraction characteristics are investigated.
本文在原有定性分析方法的基础上，提出基于年径流时间序列主周期小波系数加权求和预测周期成分的年径流预测模型。
Based on the primary qualitative method, we propose an annual runoff prediction model using weighted sum of wavelet coefficients of major periods to predict the periodic components.
给出了周期正交样条小波的计算方法。用这种周期正交样条小波可方便地处理有限区间上的问题。
In this paper, we present the computational methods of periodic orthogonal spline wavelets, which can be used to process the problems on the finite interval.
给出了周期正交样条小波的计算方法。用这种周期正交样条小波可方便地处理有限区间上的问题。
In this paper, we present the computational methods of periodic orthogonal spline wavelets, which can be used to process the problems on the finite interval.
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